Results 1 to 10 of about 14,473 (164)

COMPARING HARMONIC UNBALANCE AT MULTIPLE LOCATIONS TO CHARACTERIZE THE UNBALANCE

open access: yesIET Conference Proceedings, 2021
ISBN för värdpublikation: 978-1-83953-591-8 (elektronisk)
Sutaria, Jil   +4 more
openaire   +2 more sources

Investigation of the autorotation stability of a turbofan engine with a detached fan blade

open access: yesАвіаційно-космічна техніка та технологія, 2023
One of the requirements for the aircraft being designed is the ability to continue flying and landing if one engine fails. One of the calculated cases of engine failure is the separation of the fan blade.
Sergey Filipkovskij   +5 more
doaj   +1 more source

A Comprehensive Evaluation of Different Power Quantities in DC Electric Arc Furnace Power Supplies

open access: yesEnergies, 2023
Conventionally, DC arc furnaces are fed by thyristor rectifiers to control the level of current or power transferred to the load. With the advancement of high-power transistors, other structures such as diode rectifiers and DC choppers have been ...
Pegah Hamedani   +2 more
doaj   +1 more source

A Multi-Stage Coordinated Volt-Var Optimization for Integrated and Unbalanced Radial Distribution Networks

open access: yesEnergies, 2020
The growing penetrations of rooftop photovoltaics (PVs) into low-voltage (LV) distribution networks are challenging voltage regulation. Developing an effective volt-var (VV) control has been the focus of many researchers with various approaches proposed ...
Xiangjing Su   +6 more
doaj   +1 more source

Adjustable Vibration Exciter Based on Unbalanced Motors

open access: yesSensors, 2023
In European industry, such as metallurgical, mining and processing, construction, food, and chemical, vibration exciters are used, which indicates their wide and, in some cases, unique technological capabilities.
Volodymyr Osadchyy   +8 more
doaj   +1 more source

Aero-Engine Rotor Assembly Process Optimization Based on Improved Harris Hawk Algorithm

open access: yesAerospace, 2022
Multi-stage disc rotor assembly is an important part of the aero-engine rotor manufacturing process. To solve the problem that excessive unbalance of assembly affects the vibration of the whole machine, this paper presents an optimization method for aero-
Bin Zhang   +4 more
doaj   +1 more source

Research on Unbalanced Vibration Suppression Method for Coupled Cantilever Dual-Rotor System

open access: yesMachines, 2022
The cantilever dual-rotor system is a typical structure of the blade output end of the open rotor engine and the coaxial output turboshaft engine. The excessive unbalanced vibration of a coupled cantilever dual-rotor system is one of the main factors ...
Jiaqiao Lu   +3 more
doaj   +1 more source

A Decoupling Algorithm-Based Technology for Predicting and Regulating the Unbalance of Aircraft Rotor Assembly Considering Manufacturing Errors

open access: yesMachines, 2023
Rotor unbalance is the most important factor affecting the dynamic performance of aircraft engines. The existing unbalance prediction and control methods are insufficient for multi-stage rotors.
Yingjie Zhao   +5 more
doaj   +1 more source

MODELING OF THE MACHINE FOR THE BALANCING OF THE ROTOR IN THE ANSYS SOFTWARE COMPLEX

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2018
An imbalance appears during the manufacture, operation and maintenance of power equipment. The rotor imbalance arises due to the unbalanced masses of the rotor which leads to the emergence of variable loads on the supports and bending of the rotor.
I. R. Tazeyev   +3 more
doaj   +1 more source

Dynamic Balance Method for Grading the Chain Drive Double Threshing Drum of a Combine Harvester

open access: yesApplied Sciences, 2020
Although the individual threshing drum of a combine harvester was balanced on a dynamic balancing machine before it is assembled, there were still unbalances after multiple drums were assembled with the chain drive. In this paper, the double drums with a
Zhong Tang   +4 more
doaj   +1 more source

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